This document discusses using AngularJS to build single page applications for WordPress admin interfaces that use the WordPress REST API. It covers why this approach is beneficial, how to set it up using Angular routing, controllers, factories and HTTP requests to interact with the REST API. Benefits mentioned include making WordPress interfaces more modern and dynamic, empowering others to build plugins in a decentralized way, and the ease of transitioning to software as a service models. The document encourages readers to learn Angular and check out additional resources on the topic.